Printer User Manual

ManualsBrandsKonica Minolta ManualsPrinter5430 DL 5440 DL 5450

SERVICE MANUAL

2005.042005.04

Ver. 3.0Ver. 3.0

2005.04 Ver.3.02005.04 Ver.3.0

Printed in JapanPrinted in Japan

4138-7990-314138-7990-31

Use of this manual should be strictly supervised to

avoid disclosure of confidential information.

Use of this manual should be strictly supervised to

avoid disclosure of confidential information.

THEORY OF OPERATION

magicolor 5430 DL

magicolor 5440 DL

magicolor 5450

magicolor 5430 DL

magicolor 5440 DL

magicolor 5450

magicolor 5430 DL

magicolor 5440 DL

magicolor 5450

magicolor 5430 DL

magicolor 5440 DL

magicolor 5450

Summary of content (193 pages)

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SERVICE MANUAL magicolor® 5430 DL magicolor® 5440 DL THEORY OF OPERATION ® magicolor 5450 Use of this manual should be strictly supervised to avoid disclosure of confidential information. Printed in Japan 4138-7990-31 2005.04 Ver.3.0 © 2005 KONICA MINOLTA BUSINESS TECHNOLOGIES, INC. THEORY OF OPERATION magicolor 5430 DL magicolor 5440 DL magicolor 5450 ® ® ® 2005.04 Ver. 3.
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5430DL_5440DL_5450_TO_PDF.book 1 ページ２００５年４月１２日火曜日午後４時４９分 SAFETY AND IMPORTANT WARNING ITEMS SAFETY AND IMPORTANT WARNING ITEMS Read carefully the Safety and Important Warning Items described below to understand them before doing service work. IMPORTANT NOTICE Because of possible hazards to an inexperienced person servicing this product as well as the risk of damage to the product, KONICA MINOLTA BUSINESS TECHNOLOGIES, INC.
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5430DL_5440DL_5450_TO_PDF.book 2 ページ２００５年４月１２日火曜日午後４時４９分 SAFETY AND IMPORTANT WARNING ITEMS SAFETY WARNINGS [1] MODIFICATIONS NOT AUTHORIZED BY KONICA MINOLTA BUSINESS TECHNOLOGIES, INC. KONICA MINOLTA brand products are renowned for their high reliability. This reliability is achieved through high-quality design and a solid service network.
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5430DL_5440DL_5450_TO_PDF.book 3 ページ２００５年４月１２日火曜日午後４時４９分 SAFETY AND IMPORTANT WARNING ITEMS [2] CHECKPOINTS WHEN PERFORMING ON-SITE SERVICE Konica Minolta brand products are extensively tested before shipping, to ensure that all applicable safety standards are met, in order to protect the customer and customer engineer (hereafter called the CE) from the risk of injury. However, in daily use, any electrical equipment may be subject to parts wear and eventual failure.
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430DL_5440DL_5450_TO_PDF.book 4 ページ２００５年４月１２日火曜日午後４時４９分 SAFETY AND IMPORTANT WARNING ITEMS WARNING: Power Plug and Cord • Check whether the power cord is not stepped on or pinched by a table and so on. Overheating may occur there, leading to a risk of fire. • Do not bundle or tie the power cord. Overheating may occur there, leading to a risk of fire. • Check whether dust is collected around the power plug and wall outlet.
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5430DL_5440DL_5450_TO_PDF.book 5 ページ２００５年４月１２日火曜日午後４時４９分 SAFETY AND IMPORTANT WARNING ITEMS WARNING: Ground Connection • Check whether the product is grounded properly. If current leakage occurs in an ungrounded product, you may suffer electric shock while operating the product. Connect power plug to grounded wall outlet. 2. Installation Requirements WARNING: Prohibited Installation Places • Do not place the product near flammable materials or volatile materials that may catch fire.
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5430DL_5440DL_5450_TO_PDF.book 6 ページ２００５年４月１２日火曜日午後４時４９分 SAFETY AND IMPORTANT WARNING ITEMS CAUTION: Inspection before Servicing • Before conducting an inspection, read all relevant documentation (service manual, technical notices, etc.) and proceed with the inspection following the prescribed procedure, using only the prescribed tools. Do not make any adjustment not described in the documentation.
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5430DL_5440DL_5450_TO_PDF.book 7 ページ２００５年４月１２日火曜日午後４時４９分 SAFETY AND IMPORTANT WARNING ITEMS WARNING: Safety Checkpoints • Do not allow any metal parts such as clips, staples, and screws to fall into the product. They can short internal circuits and cause electric shock or fire. • Check wiring for squeezing and any other damage. Current can leak, leading to a risk of electric shock or fire.
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5430DL_5440DL_5450_TO_PDF.book 8 ページ２００５年４月１２日火曜日午後４時４９分 SAFETY AND IMPORTANT WARNING ITEMS WARNING: Safety Checkpoints • After replacing a part to which AC voltage is applied (e.g., optical lamp and fixing lamp), be sure to check the installation state. A risk of fire exists. • Check the interlock switch and actuator for loosening and check whether the interlock functions properly.
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5430DL_5440DL_5450_TO_PDF.book 9 ページ２００５年４月１２日火曜日午後４時４９分 SAFETY AND IMPORTANT WARNING ITEMS CAUTION: HANDLING OF SERVICE MATERIALS • Unplug the power cord from the wall outlet. Drum cleaner (isopropyl alcohol) and roller cleaner (acetone-based) are highly flammable and must be handled with care. A risk of fire exists. • Do not replace the cover or turn the product ON before any solvent remnants on the cleaned parts have fully evaporated. A risk of fire exists.
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5430DL_5440DL_5450_TO_PDF.book 10 ページ２００５年４月１２日火曜日午後４時４９分 SAFETY AND IMPORTANT WARNING ITEMS [3] MEASURES TO TAKE IN CASE OF AN ACCIDENT 1. If an accident has occurred, the distributor who has been notified first must immediately take emergency measures to provide relief to affected persons and to prevent further damage. 2. If a report of a serious accident has been received from a customer, an on-site evaluation must be carried out quickly and KMBT must be notified. 3.
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5430DL_5440DL_5450_TO_PDF.book 11 ページ２００５年４月１２日火曜日午後４時４９分 SAFETY AND IMPORTANT WARNING ITEMS [5] Laser Safety • This is a digital machine certified as a class 1 laser product. There is no possibility of danger from a laser, provided the machine is serviced according to the instruction in this manual. 5.1 Internal Laser Radiation semiconductor laser Maximum power of the laser diode 15 mW Maximum average radiation power (*) 7.
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5430DL_5440DL_5450_TO_PDF.book 12 ページ２００５年４月１２日火曜日午後４時４９分 SAFETY AND IMPORTANT WARNING ITEMS the U.S.A., Canada (CDRH Regulation) • This machine is certified as a Class I Laser product under Radiation Performance Standard according to the Food, Drug and Cosmetic Act of 1990. Compliance is mandatory for Laser products marketed in the United States and is reported to the Center for Devices and Radiological Health (CDRH) of the U.S. Food and Drug Administration of the U.S.
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5430DL_5440DL_5450_TO_PDF.book 13 ページ２００５年４月１２日火曜日午後４時４９分 SAFETY AND IMPORTANT WARNING ITEMS Finland, Sweden LUOKAN 1 LASERLAITE KLASS 1 LASER APPARAT VAROITUS! • Laitteen käyttäminen muulla kuin tässä käyttöohjeessa mainitulla tavalla saattaa altistaa käyttäjän turvallisuusluokan 1 ylittävälle näkymättömälle lasersäteilylle.
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5430DL_5440DL_5450_TO_PDF.book 14 ページ２００５年４月１２日火曜日午後４時４９分 SAFETY AND IMPORTANT WARNING ITEMS 5.2 Laser Safety Label • A laser safety label is attached to the the machine as shown below.
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5430DL_5440DL_5450_TO_PDF.book 15 ページ２００５年４月１２日火曜日午後４時４９分 SAFETY AND IMPORTANT WARNING ITEMS 5.3 Laser Caution Label • A laser caution label is attached to the inside of the machine as shown below. 4138safe001c0 5.4 PRECAUTIONS FOR HANDLING THE LASER EQUIPMENT • When laser protective goggles are to be used, select ones with a lens conforming to the above specifications.
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5430DL_5440DL_5450_TO_PDF.book 16 ページ２００５年４月１２日火曜日午後４時４９分 SAFETY AND IMPORTANT WARNING ITEMS WARNING INDICATIONS ON THE MACHINE Caution labels shown are attached in some areas on/in the machine. When accessing these areas for maintenance, repair, or adjustment, special care should be taken to avoid burns and electric shock.
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5430DL_5440DL_5450_TO_PDF.book 1 ページ２００５年４月１２日 SERVICE MANUAL 火曜日午後４時４９分 THEORY OF OPERATION magicolor 5430 DL magicolor 5440 DL magicolor 5450 ® ® ® Main Unit 2005.04 Ver. 3.
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5430DL_5440DL_5450_TO_PDF.book i ページ２００５年４月１２日火曜日午後４時４９分 magicolor 5430 DL /5440 DL /5450 Theory of Operation CONTENTS 1. System configuration............................................................................................ 1-1 2. Product specifications .......................................................................................... 1-2 2.1 Type ................................................................................................................... 1-2 2.
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5430DL_5440DL_5450_TO_PDF.book ii ページ２００５年４月１２日火曜日午後４時４９分 magicolor 5430 DL /5440 DL Theory of Operation 4.2.3 4.2.4 Toner empty condition detection................................................................. 2-17 4.2.5 Toner replenishing mechanism/control....................................................... 2-19 I Outline 5. II Composition/Operation Toner near-empty condition detection ........................................................ 2-15 Toner Cartridge / Photo Conductor ....
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5430DL_5440DL_5450_TO_PDF.book iii ページ２００５年４月１２日火曜日午後４時４９分 magicolor 5430 DL /5440 DL /5450 Theory of Operation Composition..................................................................................................... 2-47 9.1.1 Operation ......................................................................................................... 2-49 9.2.1 10. 2nd Transfer Roller pressure mechanism ................................................... 2-49 9.2.
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5430DL_5440DL_5450_TO_PDF.book iv ページ２００５年４月１２日火曜日午後４時４９分 magicolor 5430 DL /5440 DL Theory of Operation 12.3.6 Edge Guide Plate ....................................................................................... 2-71 12.3.7 Trailing Edge Guide Plate........................................................................... 2-71 12.3.8 Paper size detection control ....................................................................... 2-72 12.3.9 Paper misfeed detection control ..................
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5430DL_5440DL_5450_TO_PDF.book v ページ２００５年４月１２日火曜日午後４時４９分 magicolor 5430 DL /5440 DL /5450 Theory of Operation 15.3.8 Size error detection control......................................................................... 2-92 15.3.9 Conveyance system paper misfeed detection control ................................ 2-93 15.3.10 Control of detection of paper left in conveyance system ............................ 2-94 15.3.12 Temperature/humidity Sensor...................................................
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5430DL_5440DL_5450_TO_PDF.book vi ページ２００５年４月１２日火曜日午後４時４９分 magicolor 5430 DL /5440 DL Theory of Operation 17.1.4 Conditions enabling execution of stabilization control at the end of a print cycle of given conditions .............................................................. 2-120 17.1.5 Combination and execution sequence of different sub-controls ............... 2-121 17.2 Operation flow of image stabilization control upon replacement of unit ........ 2-122 18. Miscellaneous .....................
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5430DL_5440DL_5450_TO_PDF.book 1 ページ２００５年４月１２日火曜日 Main Unit Theory of Operation 午後４時４９分 System Configuration I Outline 1.
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5430DL_5440DL_5450_TO_PDF.book 2 ページ２００５年４月１２日 Product Specifications 2. I Outline 2.
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5430DL_5440DL_5450_TO_PDF.book 3 ページ２００５年４月１２日火曜日午後４時４９分 Main Unit Theory of Operation Functions Warm-up Time Average: 30 sec. or less (at ambient temperature of 23° C/73.4° F and rated source voltage) System Speed 152 mm/sec (Plain Paper) First-Page-Out Time (Plain Paper) 1-sided: 14.2 seconds; 2-sided: 22.3 seconds (A4) 1-sided: 14.1 seconds; 2-sided: 22.3 seconds (Letter) magicolor 5430 DL 1-sided: 20 pages/min; 2-sided: 11.5 pages/min (A4) 1-sided: 21 pages/min; 2-sided: 11.
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5430DL_5440DL_5450_TO_PDF.book 5 ページ２００５年４月１２日火曜日午後４時４９分 Main Unit Theory of Operation Product Specifications Interfaces magicolor 5450 • Parallel (IEEE 1284) Support only an ECP mode • USB 2.0 (High-Speed) compliant • 10 Base-T/100 Base-TX/1000 Base-T (IEEE 802.
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5430DL_5440DL_5450_TO_PDF.book 6 ページ２００５年４月１２日 Product Specifications I Outline 2.5 火曜日午後４時４９分 Main Unit Theory of Operation Operating Environment Temperature 10° to 35° C / 50° to 95° F (with a fluctuation of 10° C / 18° F or less per hour) Humidity 15% to 85% (with a fluctuation of 20%/h) NOTE • These specifications are subject to change without notice.
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5430DL_5440DL_5450_TO_PDF.book 7 ページ２００５年４月１２日火曜日午後４時４９分 Main Unit Theory of Operation 3.
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5430DL_5440DL_5450_TO_PDF.book 8 ページ２００５年４月１２日火曜日 Paper Path Main Unit Theory of Operation Paper Path I Outline 4.
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5430DL_5440DL_5450_TO_PDF.book 9 ページ２００５年４月１２日 Main Unit Theory of Operation 5. 火曜日午後４時４９分 Image Creation Process Image Creation Process [8] Paper Separation I Outline [7] 2nd Image Transfer [9] Transfer Belt Cleaning [6] 1st Image Transfer [2] PC Drum [10] PC Drum Cleaning [5] Developing [3] PC Drum Charging [1] Printer Processing [4] LD Exposure [1] Printer Processing • The intensity of the laser light is controlled based on the image signal transmitted from the host computer.
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5430DL_5440DL_5450_TO_PDF.book 1 ページ２００５年４月１２日 Main Unit Theory of Operation 火曜日午後４時４９分 Overall Composition II Composition/Operation 1. 1.
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5430DL_5440DL_5450_TO_PDF.book 2 ページ２００５年４月１２日火曜日 Overall Composition 1.
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5430DL_5440DL_5450_TO_PDF.book 3 ページ２００５年４月１２日火曜日午後４時４９分 Main Unit Theory of Operation 2.1 Print Head (PH) Composition 4138to2001c0 4138to2501c0 [10] [1] [1] [2] [3] [4] [5] [9] [8] [6] [7] Key Name 4138to2002c0 Function/system G2 Lens/Y, M, C, K • Condenses the incident laser light and irradiates the K Photo Conductor or Return Mirror/2nd of each color with the condensed laser light. [2] SOS Lens • Condenses the incident laser light/K onto the SOS Sensor.
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Print Head (PH) 2.2 Main Unit Theory of Operation Operation 2.2.1 Overview • Four semiconductor lasers provided, one for each of the four different colors. A single Polygon Motor is used to make a scan motion. • Each Photo Conductor is irradiated with a laser light so that an electrostatic latent image is formed on it. NOTE • The magicolor 5430 DL/5440 DL uses a different PH unit than does the magicolor 5450. When replacing the PH unit, be sure to use the PH unit for the appropriate model.
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5430DL_5440DL_5450_TO_PDF.book 5 ページ２００５年４月１２日火曜日午後４時４９分 Main Unit Theory of Operation 2.2.3 Print Head (PH) Laser emission timing • When a Ready signal is detected after the lapse of a given period of time after the print cycle has been started, a Laser ON signal is output from the Print Control Board (PWBP). • The Laser ON signal triggers the firing of each laser light, which illuminates the SOS Board via the Polygon Mirror, G1 Lens, Separation Mirror (K), and SOS Lens.
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5430DL_5440DL_5450_TO_PDF.book 6 ページ２００５年４月１２日 Print Head (PH) 2.2.5 火曜日午後４時４９分 Main Unit Theory of Operation Laser light intensity control • The laser light intensity control corrects the target level of fluctuations in fine line reproduction and reverse image (white on black) reproduction that occur due to variations in photo conductor electrostatic characteristics, developing characteristics, and transfer characteristics (part-to-part variations, environment, durability).
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5430DL_5440DL_5450_TO_PDF.book 7 ページ２００５年４月１２日 Main Unit Theory of Operation 3. 3.
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9 ページ２００５年４月１２日 Main Unit Theory of Operation Key 午後４時４９分 Toner Cartridge (TC) / TC Overall Composition Name Function/system Hopper • Loaded with toner that is conveyed onto the Developing Unit by way of the Conveyance Pipe • Capacity Toner Cartridge shipped with machine: Quantity equivalent to 3000 printed pages Standard Toner Cartridge: Quantity equivalent to 6000 printed pages High-Capacity Toner Cartridge (magicolor 5440 DL/ 5450 only): Quantity equivalent to 12,000 printed pages • Single-compo
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5430DL_5440DL_5450_TO_PDF.book 10 ページ２００５年４月１２日火曜日 Toner Cartridge (TC) / TC Overall Composition 3.
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5430DL_5440DL_5450_TO_PDF.book 12 ページ２００５年４月１２日 Toner Cartridge (TC) / TC Overall Composition 3.3 3.3.1 火曜日午後４時４９分 Main Unit Theory of Operation Operation Configuration of Toner Cartridge • The Toner Cartridge is U-shaped, positioned so as to enclose the Transfer Belt Unit. It consists of three major sections: the Hopper, Developing Unit, and Connection. Hopper Transfer Belt Unit Connection II Composition/Operation Developing Unit 4138to2005c2 3.3.
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5430DL_5440DL_5450_TO_PDF.book 13 ページ２００５年４月１２日 Main Unit Theory of Operation 火曜日午後４時４９分 Toner Cartridge (TC) / TC Overall Composition D. Removal procedure • The Toner Cartridge is pressed in the predetermined position. Pushing down the front handle once will disengage the lock pawl. • Hold the front handle with your right hand and withdraw the Hopper. • When the drop preventive claw of the upper handle is about to hit against the machine frame, raise the upper handle.
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5430DL_5440DL_5450_TO_PDF.book 14 ページ２００５年４月１２日 Toner Cartridge / Hopper 4. 4.
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5430DL_5440DL_5450_TO_PDF.book 15 ページ２００５年４月１２日火曜日午後４時４９分 Main Unit Theory of Operation 4.2 4.2.1 Toner Cartridge / Hopper Operation Toner Level Detection (magicolor 5430 DL/5440 DL) NOTE • When the toner remaining in the cartridge is between 88% and 100%, the display shows “100%,” regardless of the actual amount. The amount of toner supplied to the toner cartridge may vary slightly. Also, some toner is consumed when checking the screen during manufacture.
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5430DL_5440DL_5450_TO_PDF.book 16 ページ２００５年４月１２日 Toner Cartridge / Hopper 火曜日午後４時４９分 Main Unit Theory of Operation • The relevant warning message is displayed when a toner near-empty condition is detected.
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30DL_5440DL_5450_TO_PDF.book 17 ページ２００５年４月１２日 Main Unit Theory of Operation 4.2.4 火曜日午後４時４９分 Toner Cartridge / Hopper Toner empty condition detection • A toner empty condition is detected by the LED and toner level sensor mounted on the Toner Level Sensor Board (PWB-D) provided in the machine. • Light emitted from the LED travels through the light guiding path and is guided into the Toner Cartridge.
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5430DL_5440DL_5450_TO_PDF.book 18 ページ２００５年４月１２日 Toner Cartridge / Hopper 火曜日午後４時４９分 Main Unit Theory of Operation • The relevant warning message is displayed when a toner empty condition is detected.
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5430DL_5440DL_5450_TO_PDF.book 19 ページ２００５年４月１２日火曜日午後４時４９分 Main Unit Theory of Operation 4.2.5 Toner Cartridge / Hopper Toner replenishing mechanism/control A. Toner replenishing mechanism • The Toner Supply Motor is energized according to the condition of the toner level sensor for each color of toner. Toner is then supplied from the Hopper to the Developing Unit as necessary.
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5430DL_5440DL_5450_TO_PDF.book 20 ページ２００５年４月１２日 Toner Cartridge / Hopper 火曜日午後４時４９分 Main Unit Theory of Operation II Composition/Operation C. Toner Supply Motor control • The Toner Supply Motor control is carried out when all of the following conditions are met while the Developing Motor turns evenly. 1. The toner level sensor output value indicates that toner replenishing for the Developing Unit is required. 2.
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5430DL_5440DL_5450_TO_PDF.book 21 ページ２００５年４月１２日 Main Unit Theory of Operation 火曜日午後４時４９分 Toner Cartridge / Hopper II Composition/Operation G. Toner Supply Motor control termination timing • The Toner Supply Motor is brought to a stop or interrupted under any of the following conditions: 1. The Developing Motor stops completely or turns unevenly. 2. The Toner Supply Motor has turned for a predetermined period of time. 3.
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5430DL_5440DL_5450_TO_PDF.book 22 ページ２００５年４月１２日火曜日 Toner Cartridge / Photo Conductor 5. 5.1 午後４時４９分 Main Unit Theory of Operation Toner Cartridge / Photo Conductor Composition [1] Aluminum base II Composition/Operation Charge Transport Layer Charge Generating Layer Direction of rotation 4138to2505c1 4138to2004c0 Key Name Photo Conductor/Y, M, C, K [1] 5.2 5.2.
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5430DL_5440DL_5450_TO_PDF.book 23 ページ２００５年４月１２日 Main Unit Theory of Operation 5.2.2 火曜日午後４時４９分 Toner Cartridge / Photo Conductor Photo Conductor post-exposure control • 1. The total exposure sequence is started after the last image moves past the exposure position (to prevent dirt on the background due to a potential difference between the Photo Conductor and the Developing Unit). 5.2.
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5430DL_5440DL_5450_TO_PDF.book 24 ページ２００５年４月１２日 Toner Cartridge / Photo Conductor 5.2.4 火曜日午後４時４９分 Main Unit Theory of Operation Photo Conductor small amount rotation control • Ozone stagnant in areas near the Charge Corona Unit reduces sensitivity of the Photo Conductors, causing white bands to occur in the image.
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5430DL_5440DL_5450_TO_PDF.book 25 ページ２００５年４月１２日 Main Unit Theory of Operation 6. 6.
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5430DL_5440DL_5450_TO_PDF.book 26 ページ２００５年４月１２日 Toner Cartridge / Charge Corona Section 6.2 6.2.1 火曜日午後４時４９分 Main Unit Theory of Operation Operation Charge Corona Unit ON/OFF control Polygon Motor (M8) Semiconductor laser Intermediate Transport Motor (M3) Color PC Drum Motor (M2) II Composition/Operation Developing Motor/ Y, M, C (M1) Developing Motor/ K (M5) Charge K Charge YMC 4138to2133e0 6.2.
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5430DL_5440DL_5450_TO_PDF.book 27 ページ２００５年４月１２日 Main Unit Theory of Operation 午後４時４９分 Toner Cartridge / Charge Corona Section Ozone ventilation mechanism • Ozone stagnant in areas near the Charge Corona Unit reduces sensitivity of the Photo Conductor, causing white bands to occur in the image. • The Ozone Filter is used to remove ozone produced by the Charge Corona Unit, thereby preventing sensitivity of the Photo Conductor surface from being degraded.
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5430DL_5440DL_5450_TO_PDF.book 28 ページ２００５年４月１２日 Toner Cartridge / Developing Unit 7. 7.
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２００５年４月１２日 Main Unit Theory of Operation Key Toner Cartridge / Developing Unit Name Function/system • Supplies toner fed by the Supply Roller to the surface of the Photo Conductor • Conveys toner to the surface of the Photo Conductor through potential difference • The developing bias voltage is applied to this roller • A given distance from the Photo Conductor is maintained by means of the Ds Roll • Single component developing system Toner Chamber • Tank in which toner fed off from the Hopper is tempo
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5430DL_5440DL_5450_TO_PDF.book 30 ページ２００５年４月１２日 Toner Cartridge / Developing Unit 7.2 7.2.
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5430DL_5440DL_5450_TO_PDF.book 31 ページ２００５年４月１２日火曜日 Main Unit Theory of Operation Toner Cartridge / Developing Unit Toner flow 1. Toner stored in the Hopper is agitated by the Agitating Blade and conveyed onto the front side of the Hopper by the Conveyance Screw. 2. The toner conveyed onto the front side of the Hopper is conveyed down to the Toner Chamber through the Conveyance Pipe. 3. The toner conveyed from the Hopper is conveyed onto the Toner Chamber by the Replenishing Screw. 4.
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5430DL_5440DL_5450_TO_PDF.book 32 ページ２００５年４月１２日 Toner Cartridge / Developing Unit II Composition/Operation 7.2.3 火曜日午後４時４９分 Main Unit Theory of Operation Developing system • Two types of developing systems are used, a non-contact developing system and an alternating current application system. 1. A negative charge (supply bias voltage Vr) is applied the Supply Roller to regulate the amount of toner sticking to the Developing Roller. 2.
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5430DL_5440DL_5450_TO_PDF.book 33 ページ２００５年４月１２日 Main Unit Theory of Operation 7.2.4 火曜日午後４時４９分 Toner Cartridge / Developing Unit Developing bias Vpp control (Ds compensation control) A. Simplified check 1. The leak decision criterion value is measured. 2. A leak decision is made based on the data acquired during the last complete correction control. 3. If it is determined that there is no leak occurring, the last Vpp value is applied. 4.
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5430DL_5440DL_5450_TO_PDF.book 34 ページ２００５年４月１２日 Toner Cartridge / Developing Unit 7.2.5 火曜日午後４時４９分 Main Unit Theory of Operation Developing bias duty control (compensation control of the maximum amount of toner sticking to the Transfer Belt) II Composition/Operation • This control corrects to achieve the target amount of toner sticking to the Transfer Belt to form the solid image. • The duty control may be either the simplified correction or complete correction.
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5430DL_5440DL_5450_TO_PDF.book 35 ページ２００５年４月１２日 Main Unit Theory of Operation 7.2.6 火曜日午後４時４９分 Toner Cartridge / Developing Unit Gamma correction control A. Correction control 1. A detection pattern of each color of toner is produced on the surface of the Transfer Belt. 2. The detection pattern is detected by the AIDC Sensor. 3. The mean value of the readings taken is calculated. 4. Noise is removed from the mean value. 5. Rearrange the readings in descending order. 6. Normalize the readings.
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5430DL_5440DL_5450_TO_PDF.book 36 ページ２００５年４月１２日 Toner Cartridge / Developing Unit 7.2.7 火曜日午後４時４９分 Main Unit Theory of Operation Cleaning mechanism A. Cleaning operation 1. The Cleaning Blade is pressed against the surface of the Photo Conductor to remove toner left off the surface (trailing system). 2. The toner, which has been scraped off by the Cleaning Blade, is conveyed by the Toner Collecting Screw and collected in the Waste Toner Storage Tank. 3.
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5430DL_5440DL_5450_TO_PDF.book 37 ページ２００５年４月１２日火曜日午後４時４９分 Main Unit Theory of Operation 8.1 1st Transfer Section Composition 4138to2034c0 4138to2033c0 [10] [11] [7] [8] [9] [13] [12] [6] [5] [4] [1] [3] [2] 4138to2035c2 [14] [15] [16] 2-37 4138t02031c0 II Composition/Operation 8.
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5430DL_5440DL_5450_TO_PDF.book 39 ページ２００５年４月１２日火曜日午後４時４９分 Main Unit Theory of Operation 8.
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5430DL_5440DL_5450_TO_PDF.book 40 ページ２００５年４月１２日 1st Transfer Section 8.3 火曜日午後４時４９分 Main Unit Theory of Operation Operation 8.3.1 Transfer Belt speed control • The Transfer Belt is driven by the Intermediate Transport Motor (M3). • The appropriate belt speed is selected according to the print mode and media type as detailed below.
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5430DL_5440DL_5450_TO_PDF.book 41 ページ２００５年４月１２日火曜日午後４時４９分 Main Unit Theory of Operation 8.3.3 1st Transfer Section 1st Transfer Roller pressure/retraction control • To extend the service life of the Photo Conductor/Y, M, C, the pressure position of the 1st Transfer Roller is changed between the monochrome mode and the color mode. The 1st Transfer Roller/K is not provided with a retraction mechanism; the Transfer Belt is pressed against the Photo Conductor/K at all times.
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5430DL_5440DL_5450_TO_PDF.book 42 ページ２００５年４月１２日 1st Transfer Section 火曜日午後４時４９分 Main Unit Theory of Operation E. Retraction operation 1. Rotation of the Intermediate Transport Motor (M3) is transmitted by a gear train to the Pressure/Retraction Clutch/1st Image Transfer (CL4). 2. Rotation of the Pressure/Retraction Clutch/1st Image Transfer (CL4) turns the Pressure Cam, which moves the Sliding Plate. 3. As the Sliding Plate moves, the Retraction Lever turns. 4.
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5430DL_5440DL_5450_TO_PDF.book 43 ページ２００５年４月１２日火曜日 Main Unit Theory of Operation 午後４時４９分 1st Transfer Section G. Retraction position control • The pressure and retraction operation of the 1st Transfer Roller is controlled as the Retraction Position Sensor/1st Image Transfer (PC9) detects the movement of the Sliding Plate. 1. The Pressure/Retraction Clutch/1st Image Transfer (CL4) is energized. 2. The Sliding Plate is moved to retract the 1st Transfer Rollers from the Transfer Belt.
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5430DL_5440DL_5450_TO_PDF.book 44 ページ２００５年４月１２日 1st Transfer Section 8.3.4 火曜日午後４時４９分 Main Unit Theory of Operation 1st Transfer Roller pressure/retraction failure detection control • The machine monitors the state of the Retraction Position Sensor/1st Image Transfer (PC9) for detection of failures. II Composition/Operation A.
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5430DL_5440DL_5450_TO_PDF.book 45 ページ２００５年４月１２日火曜日午後４時４９分 Main Unit Theory of Operation 8.3.5 1st Transfer Section Transfer Belt cleaning • To scrape residual toner off the surface of the Transfer Belt, the Transfer Belt is provided with a Cleaning Blade. • The Cleaning Blade is in pressed contact with the Transfer Belt at all times. That is, it cleans the surface of the Transfer Belt as long as the belt turns.
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5430DL_5440DL_5450_TO_PDF.book 46 ページ２００５年４月１２日 1st Transfer Section 火曜日午後４時４９分 Main Unit Theory of Operation D. 1st Transfer Belt backward rotation execution conditions • After the lapse of a predetermined period of time after the Transfer Unit stop sequence. • A predetermined number of printed pages are produced after the execution of the last backward rotation control. E. 1st Transfer Belt backward rotation operation 1.
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5430DL_5440DL_5450_TO_PDF.book 47 ページ２００５年４月１２日火曜日午後４時４９分 Main Unit Theory of Operation 9. 9.
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5430DL_5440DL_5450_TO_PDF.book 48 ページ２００５年４月１２日火曜日 2nd Transfer Section 9.1.
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5430DL_5440DL_5450_TO_PDF.book 49 ページ２００５年４月１２日 Main Unit Theory of Operation 9.2 9.2.1 火曜日午後４時４９分 2nd Transfer Section Operation 2nd Transfer Roller pressure mechanism • The machine is provided with a mechanism that presses the 2nd Transfer Roller up against, and retracts it from, the Transfer Belt. This is done to prevent the 2nd Transfer Roller from being dirtied due to patterns produced for purposes other than an actual printing operation.
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5430DL_5440DL_5450_TO_PDF.book 50 ページ２００５年４月１２日 2nd Transfer Section 火曜日午後４時４９分 Main Unit Theory of Operation 2nd Transfer Roller 4138to2071c0 II Composition/Operation Transfer Belt drive roller Retraction Lever Retraction Cam Pressure/Retraction Clutch/2nd Image Transfer (CL5) 4138to2063c0 When pressed When retracted 2nd Transfer Roller Retraction Lever 41382070c0 4138to2064c0 Retraction Cam D.
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5430DL_5440DL_5450_TO_PDF.book 51 ページ２００５年４月１２日 Main Unit Theory of Operation 9.2.2 火曜日午後４時４９分 2nd Transfer Section 2nd Transfer Roller pressure position deviation preventive mechanism • When the Right Door is opened and closed, the Pressure Cam is rotated to prevent the 2nd Transfer Roller from deviating from the pressure position. A. Operation • The lever moves up or down as the Right Door is opened or closed, thereby locking rotation of the coupling gear that drives the Pressure Cam.
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5430DL_5440DL_5450_TO_PDF.book 52 ページ２００５年４月１２日火曜日 2nd Transfer Section 9.2.4 午後４時４９分 Main Unit Theory of Operation 2nd transfer voltage setting control (ATVC: Auto Transfer Voltage Control) • The transfer voltage (T2) is corrected to reduce effect from the Transfer Belt and environmental changes of toner. A. Overview of 2nd transfer ATVC operation Start Constant current is applied to the 2nd Transfer Roller. II Composition/Operation The current value of the 2nd Transfer Roller is measured.
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5430DL_5440DL_5450_TO_PDF.book 53 ページ２００５年４月１２日火曜日午後４時４９分 Main Unit Theory of Operation 9.2.5 2nd Transfer Section 2nd transfer voltage fine-adjustment control • The voltage value established through the ATVC control is fine-adjusted according to the type of media. • The following adjustment values are used for labels, coated stock, and recycled paper, for which no setting values are defined. Type of media Adjustment value 9.2.
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5430DL_5440DL_5450_TO_PDF.book 54 ページ２００５年４月１２日火曜日 2nd Transfer Section 9.2.8 午後４時４９分 Main Unit Theory of Operation 2nd Transfer Roller cleaning operation timing • The 2nd Transfer Roller cleaning sequence is carried out after the Intermediate Transfer Belt has been cleaned during recovery from a media misfeed or malfunction. • The cleaning sequence is carried out if 100 printed pages are produced after the last cleaning sequence.
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5430DL_5440DL_5450_TO_PDF.book 55 ページ２００５年４月１２日 Main Unit Theory of Operation 火曜日午後４時４９分 Toner Collecting Section 10. Toner Collecting Section 10.
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5430DL_5440DL_5450_TO_PDF.book 56 ページ２００５年４月１２日 Toner Collecting Section 火曜日午後４時４９分 Main Unit Theory of Operation 10.
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5430DL_5440DL_5450_TO_PDF.book 57 ページ２００５年４月１２日 Main Unit Theory of Operation 火曜日午後４時４９分 Toner Collecting Section 10.3 Operation 10.3.1 Toner collecting mechanism II Composition/Operation • Toner scraped off by the Cleaning Blade of the Intermediate Transfer Belt Unit is conveyed into the Waste Toner Box. ☞ 2-45 • The toner is conveyed into the Waste Toner Box by the Toner Collecting Screw provided in the Waste Toner Box. Toner Collecting Screw 4138to2052c0 10.3.
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5430DL_5440DL_5450_TO_PDF.book 58 ページ２００５年４月１２日火曜日 Toner Collecting Section 10.3.3 午後４時４９分 Main Unit Theory of Operation Waste Toner Box locking mechanism • When the Box Lock Lever is in the unlocked position (the 12 o'clock position), the protrusion provided at the Toner Collecting Port interferes with the machine frame, thus preventing the Waste Toner Box from being removed. • When the Box Lock Lever is in the locked position (the 9 o'clock position), the Waste Toner Box can be removed.
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5430DL_5440DL_5450_TO_PDF.book 59 ページ２００５年４月１２日火曜日 Main Unit Theory of Operation 10.3.6 午後４時４９分 Toner Collecting Section Waste toner near-full condition detection • A waste toner near-full condition is detected using the output state of the Waste Toner Full Sensor. • A waste toner full condition is detected based on the dot count. • The output value of the Waste Toner Full Sensor cannot be acquired during the AIDC control (registration correction, gamma correction).
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5430DL_5440DL_5450_TO_PDF.book 60 ページ２００５年４月１２日火曜日 Toner Collecting Section 午後４時４９分 Main Unit Theory of Operation B. Waste toner status decision after detection of a waste toner near-full condition • Opening and closing the Front Door resets a waste toner near-full condition. The control state then proceeds to “waste toner status decision.
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5430DL_5440DL_5450_TO_PDF.book 61 ページ２００５年４月１２日火曜日 Main Unit Theory of Operation 午後４時４９分 Toner Collecting Section Power source Waste toner / Status decision Near-full condition Full condition detection Full condition reset decision Full condition 4138to2137e2 10.3.7 Waste toner full condition detection control A.
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5430DL_5440DL_5450_TO_PDF.book 62 ページ２００５年４月１２日火曜日 Toner Collecting Section 午後４時４９分 Main Unit Theory of Operation II Composition/Operation D. Waste toner full condition reset decision after detection of a waste toner full condition • If the Waste Toner Full Sensor (PC11) does not output continuously a voltage of a predetermined value or more for a predetermined period of time or more during “waste toner status decision,” a “waste toner full condition reset decision” is made.
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5430DL_5440DL_5450_TO_PDF.book 63 ページ２００５年４月１２日火曜日午後４時４９分 Main Unit Theory of Operation AIDC Sensor 11.
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5430DL_5440DL_5450_TO_PDF.book 64 ページ２００５年４月１２日 AIDC Sensor 11.1.1 火曜日午後４時４９分 Main Unit Theory of Operation Drive [4] [3] II Composition/Operation [1] [2] 4138to2083c0 [1] Pressure/Retraction Clutch/2nd Image Transfer (CL5) [3] AIDC Sensor Cover [2] Retraction Cam [4] AIDC Sensor Lever 11.2 Operation 11.2.1 Toner density detection control • A reflective sensor is used for the AIDC Sensor that detects the amount of toner sticking to the surface of the Transfer Belt.
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5430DL_5440DL_5450_TO_PDF.book 65 ページ２００５年４月１２日火曜日午後４時４９分 Main Unit Theory of Operation 11.2.2 AIDC Sensor AIDC Sensor calibration control A. Simplified correction control 1. The offset voltage of the AIDC Sensor is calculated. 2. A simplified detection pattern of each color of toner is produced on the surface of the Transfer Belt. 3. The LED is illuminated with the intensity value set last to let the AIDC Sensor detect the output value. 4.
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5430DL_5440DL_5450_TO_PDF.book 66 ページ２００５年４月１２日火曜日 AIDC Sensor 午後４時４９分 Main Unit Theory of Operation B. Complete correction control 1. The offset voltage of the AIDC Sensor is calculated. 2. A complete detection pattern of each color of toner is produced on the surface of the Transfer Belt. 3. The LED is illuminated with each of the specified intensity values and the output value for each LED intensity value is detected using the AIDC Sensor. 4.
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5430DL_5440DL_5450_TO_PDF.book 67 ページ２００５年４月１２日 Main Unit Theory of Operation 火曜日午後４時４９分 Media Feed Section (magicolor 5430 DL) 12. Media Feed Section (magicolor 5430 DL) 12.
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5430DL_5440DL_5450_TO_PDF.book 68 ページ２００５年４月１２日火曜日 Media Feed Section (magicolor 5430 DL) 午後４時４９分 Main Unit Theory of Operation 12.
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5430DL_5440DL_5450_TO_PDF.book 69 ページ２００５年４月１２日 Main Unit Theory of Operation 火曜日午後４時４９分 Media Feed Section (magicolor 5430 DL) 12.3 Operation 12.3.1 Paper Lift Plate mechanism • The Paper Lift Plate is pressed down into the locked position (so the media can be loaded). • A stack of media is loaded and then the tray is slid into the machine. This causes the Lock Release Lever to unlock the Paper Lift Plate. • The Paper Lift Plate (media stack) is pressed against the Feed Roller.
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5430DL_5440DL_5450_TO_PDF.book 70 ページ２００５年４月１２日 Media Feed Section (magicolor 5430 DL) II Composition/Operation 12.3.3 火曜日午後４時４９分 Main Unit Theory of Operation Media feed control • Drive from the Intermediate Transport Motor (M3) is transmitted through the Tray 1 Paper Feed Clutch (CL1) to turn the Feed Roller, thereby taking up and feeding the media. • The media taken up and fed in is conveyed onto the Synchronizing Roller.
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5430DL_5440DL_5450_TO_PDF.book 71 ページ２００５年４月１２日 Main Unit Theory of Operation 12.3.5 火曜日午後４時４９分 Media Feed Section (magicolor 5430 DL) Media empty condition detection control • The media empty message (TRAY1 EMPTY) is displayed on the panel when the Empty Sensor Actuator unblocks the Tray 1 Media Empty Sensor (PC1). • No mechanism is provided for detecting a media near-empty condition. The media supply level indicator serves this purpose.
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5430DL_5440DL_5450_TO_PDF.book 72 ページ２００５年４月１２日 Media Feed Section (magicolor 5430 DL) 12.3.8 火曜日午後４時４９分 Main Unit Theory of Operation Media size detection control • The Paper Size Switch (S5) detects the length size (FD) of the media. 1. The Size Detection Board turns as the Trailing Edge Guide Plate is moved. 2. When the tray is slid into the machine, the Size Detection Board pushes the actuator of the Paper Size Switch (S5) mounted to the machine frame, thus turning ON the switch. 3.
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5430DL_5440DL_5450_TO_PDF.book 73 ページ２００５年４月１２日 Main Unit Theory of Operation 火曜日午後４時４９分 Media Feed Section (magicolor 5440 DL/5450) 13. Media Feed Section (magicolor 5440 DL/5450) NOTE • Be sure to note that the feed tray located immediately under the printer is named differently depending upon the printer model. magicolor 5430 DL/5440 DL TRAY1 magicolor 5450 TRAY2 • Throughout this manual, this tray is referred to as TRAY1, its magicolor 5430 DL/ 5440 DL name.
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5430DL_5440DL_5450_TO_PDF.book 75 ページ２００５年４月１２日 Main Unit Theory of Operation 13.3.2 火曜日午後４時４９分 Media Feed Section (magicolor 5440 DL/5450) Paper separation mechanism • Drive from the Intermediate Transport Motor (M3) is transmitted through the Tray 1 Paper Feed Clutch (CL1) to turn the Feed Roller. • The Feed Roller rotates to take up and feed paper into the machine. • Double-feeding of paper is prevented by the Separation Roller provided with a torque limiter.
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5430DL_5440DL_5450_TO_PDF.book 76 ページ２００５年４月１２日 Media Feed Section (magicolor 5440 DL/5450) 13.3.4 火曜日午後４時４９分 Main Unit Theory of Operation Paper supply level detection control • There is a window in the front cover of the cassette for indicating the paper supply level. • When the Paper Lift Plate goes up, a red lever appears in the window. The lower the level of the paper stack, the more the red portion is visible.
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5430DL_5440DL_5450_TO_PDF.book 77 ページ２００５年４月１２日 Main Unit Theory of Operation 13.3.6 火曜日午後４時４９分 Media Feed Section (magicolor 5440 DL/5450) Edge Guide Plate • Set the appropriate Edge Guide Plate which corresponds to the width of the media to be loaded (A4 or 81/2). • No mechanism is provided for detecting the media size.
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5430DL_5440DL_5450_TO_PDF.book 78 ページ２００５年４月１２日 Media Feed Section (magicolor 5440 DL/5450) 13.3.8 火曜日午後４時４９分 Main Unit Theory of Operation Tray detection control • Detects the Tray presence with the Paper size switch (S5). 1. Setting the Tray to the printer will make the detecting plate press and turn ON the actuator for the Paper size switch (S5) mounted on the Copier frame. 2.
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5430DL_5440DL_5450_TO_PDF.book 79 ページ２００５年４月１２日 Main Unit Theory of Operation 火曜日午後４時４９分 Manual Feed Section (magicolor 5440 DL/5450) 14. Manual Feed Section (magicolor 5440 DL/5450) NOTE • Be sure to note that the feed tray located on the right side of the printer is named differently depending upon the printer model. magicolor 5430 DL/5440 DL magicolor 5450 MANUAL FEED TRAY TRAY1 • Throughout this manual, this tray is referred to as MANUAL FEED TRAY, its magicolor 5430 DL/5440 DL name.
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5430DL_5440DL_5450_TO_PDF.book 81 ページ２００５年４月１２日 Main Unit Theory of Operation 火曜日午後４時４９分 Manual Feed Section (magicolor 5440 DL/5450) 14.3 Operation 14.3.1 Paper Lift Plate mechanism • The Paper Lift Plate will be locked under the Paper Lift Plate Lock Lever by pressing it down (in which the media is loaded in position). The Paper Lift Plate Lock Lever will be pressed to the Feed Roller.
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5430DL_5440DL_5450_TO_PDF.book 82 ページ２００５年４月１２日 Manual Feed Section (magicolor 5440 DL/5450) 14.3.2 火曜日午後４時４９分 Main Unit Theory of Operation Media separation mechanism • Drive from the Intermediate Transport Motor (M3) is transmitted through the Manual Feed Tray Paper Feed Clutch (CL3) to turn the Feed Roller. • The Feed Roller rotates to take up and feed media into the machine. • Double-feeding of media is prevented by the Separation Roller provided with a torque limiter.
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5430DL_5440DL_5450_TO_PDF.book 83 ページ Main Unit Theory of Operation 14.3.4 ２００５年４月１２日火曜日午後４時４９分 Manual Feed Section (magicolor 5440 DL/5450) Media empty condition detection control • A media empty condition is detected when the Empty Sensor Actuator unblocks the Manual Feed Tray Paper Empty Sensor (PC3). • No mechanism is provided for detecting a media near-empty condition. The media supply level indicator serves this purpose.
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5430DL_5440DL_5450_TO_PDF.book 84 ページ２００５年４月１２日 Manual Feed Section (magicolor 5440 DL/5450) 14.3.6 火曜日午後４時４９分 Main Unit Theory of Operation Media misfeed detection control II Composition/Operation • If the Synchronizing Roller Sensor (PC4) is not activated within a predetermined period of time after a media feed sequence has been started, the machine determines that there is a media misfeed.
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5430DL_5440DL_5450_TO_PDF.book 85 ページ２００５年４月１２日火曜日午後４時４９分 Main Unit Theory of Operation Conveyance Section 15.
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5430DL_5440DL_5450_TO_PDF.book 86 ページ２００５年４月１２日火曜日 Conveyance Section Key [6] [7] [8] 午後４時４９分 Main Unit Theory of Operation Name Function/system Synchronizing Roller Sensor (PC4) • Detects the leading edge of the media fed from the Feed Roller Temperature/humidity Sensor (HS1) • Detects temperature and humidity inside the machine OHP Sensor (PC7) • Identifies the type of the media fed from the Feed Roller 15.
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5430DL_5440DL_5450_TO_PDF.book 87 ページ２００５年４月１２日火曜日午後４時４９分 Main Unit Theory of Operation Conveyance Section 15.3 Operation 15.3.1 Conveyance speed control • The Intermediate Transport Motor (M3) provides drive for the conveyance section. • The conveyance speed is variable in three steps and the appropriate one is selected according to the media type and print mode as detailed below.
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5430DL_5440DL_5450_TO_PDF.book 88 ページ２００５年４月１２日 Conveyance Section 15.3.3 火曜日午後４時４９分 Main Unit Theory of Operation Control of loop formed before Synchronizing Roller • Media conveyance is stopped after the lapse of a predetermined period of time after the leading edge of the media fed from the Feed Roller has reached the Synchronizing Roller. This forms a loop in the media. • The loop in the media corrects skew in the media. II Composition/Operation Synchronizing Roller Media 4138to2100c0 A.
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5430DL_5440DL_5450_TO_PDF.book 89 ページ２００５年４月１２日火曜日 Main Unit Theory of Operation 午後４時４９分 Conveyance Section B. Synchronizing Roller Clutch (CL2) control • In synchronization with the leading edge of the image [the Sub Scan Print Start signal (/ TOD) of the controller] after the leading edge of the media has reached the Synchronizing Roller and a loop has been formed in the media, the Synchronizing Roller Clutch (CL2) is energized to start turning the Synchronizing Roller.
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5430DL_5440DL_5450_TO_PDF.book 90 ページ２００５年４月１２日火曜日 Conveyance Section 15.3.5 午後４時４９分 Main Unit Theory of Operation Control of loop formed before fusing section II Composition/Operation • The difference between the fusing speed and media conveyance speed is corrected to prevent double transferred images and brush effects from occurring. • The Paper Loop Sensor (PC6) detects the length of the loop formed in the media between the 2nd Transfer Roller and the Fusing Pressure Roller.
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5430DL_5440DL_5450_TO_PDF.book 91 ページ２００５年４月１２日火曜日午後４時４９分 Main Unit Theory of Operation 15.3.6 Conveyance Section Media neutralization Charge Neutralizing Cloth 4138to2102c0 Media 15.3.7 2nd Transfer Roller OHP film detection control • To prevent incorrect prints on OHP film, the type of the media being conveyed is detected by the OHP Sensor (PC7). • The OHP detection is made after the loop has been formed in the media before the Synchronizing Roller.
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5430DL_5440DL_5450_TO_PDF.book 92 ページ２００５年４月１２日 Conveyance Section Print Feed Feed operation “TYPE ERROR” media Yet to be printed Subsequent sheets Printed Yet to be printed Printed II Composition/Operation 15.3.
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5430DL_5440DL_5450_TO_PDF.book 93 ページ２００５年４月１２日火曜日午後４時４９分 Main Unit Theory of Operation Conveyance Section • The size error display can be reset when the Power Switch is turned OFF and ON, or by a reset command (media size error reset). • If a media size error is detected during 2-sided printing, the machine determines that there is a media misfeed and stops operating. 15.3.
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5430DL_5440DL_5450_TO_PDF.book 94 ページ２００５年４月１２日 Conveyance Section 火曜日午後４時４９分 Main Unit Theory of Operation • The “MEDIA JAM (magicolor 5430 DL/5440 DL)” or “PAPER JAM (magicolor 5450)” display is reset when all doors are closed after any of the doors has been open. At the same time, the information on media left is cleared. Thereafter, the machine attempts to detect any sheet of media left inside it again. 15.3.
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5430DL_5440DL_5450_TO_PDF.book 95 ページ２００５年４月１２日火曜日午後４時４９分 Main Unit Theory of Operation 15.3.11 Conveyance Section Control of detection of media left in machine upon stoppage of media conveyance • When media conveyance is stopped due to a media misfeed, a malfunction, an opened door, or a unit closure failure, the machine checks for media left inside it. • If a media misfeed occurs, the machine performs the following detection procedures 1 to 3.
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5430DL_5440DL_5450_TO_PDF.book 96 ページ２００５年４月１２日 Fusing Section 火曜日午後４時４９分 Main Unit Theory of Operation 16. Fusing Section II Composition/Operation 16.
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２００５年４月１２日火曜日午後４時４９分 Main Unit Theory of Operation Key Name [9] [10] • Applies pressure to the toner to fuse it into the media • Toner is fused by the Fusing Pressure Roller and Fusing Belt Fusing Pressure Roller Thermostat (TS2) • Detects an abnormally high temperature of the Fusing Pressure Roller • Non-contact type Fusing Entrance Guide Plate • Guides the media between the Heating Roller and Fusing Pressure Roller Fusing Motor (M4) • Drives the Fusing Pressure Roller and Paper Exit Roller
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5430DL_5440DL_5450_TO_PDF.book 98 ページ２００５年４月１２日火曜日 Fusing Section 午後４時４９分 Main Unit Theory of Operation 16.
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5430DL_5440DL_5450_TO_PDF.book 99 ページ２００５年４月１２日火曜日午後４時４９分 Main Unit Theory of Operation Fusing Section 16.3 Operation Fusing Pressure Roller pressure selection mechanism • The pressure applied by the Fusing Pressure Roller is selected appropriately to prevent media wrinkles during printing of envelopes. • A pressure selection mechanism is provided to vary the pressure in two steps.
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5430DL_5440DL_5450_TO_PDF.book 100 ページ２００５年４月１２日火曜日 Fusing Section 午後４時４９分 Main Unit Theory of Operation II Composition/Operation • The fusing speed is not changed during a single job. • When the last piece of media for that particular job moves past the Paper Exit Roller, the Fusing Motor speed is switched to the 1/3 speed. B.
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5430DL_5440DL_5450_TO_PDF.book 101 ページ２００５年４月１２日火曜日午後４時４９分 Main Unit Theory of Operation Fusing Section C. Fusing Pressure Roller deformation prevention control • To prevent the Fusing Pressure Roller from being deformed, the Fusing Pressure Roller is forcibly turned if it is left idle for a predetermined period of time. • Operation timing 1. If the machine remains in the standby state for more than 13 hours, the Fusing Motor (M4) is turned at 1/3 speed for 1 sec. 2.
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5430DL_5440DL_5450_TO_PDF.book 102 ページ２００５年４月１２日 II Composition/Operation Fusing Section 火曜日午後４時４９分 Main Unit Theory of Operation E. Media width detection control • The Paper Size Sensor (PC23) detects the width of the media being conveyed. • If the width of the media that has moved past the Paper Size Sensor (PC23) is 210 mm (A4 width) or more, the leading edge of the media pushes up the actuator of the sensor, thus blocking the sensor.
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２００５年４月１２日 Main Unit Theory of Operation 火曜日午後４時４９分 Fusing Section F. Detection of media full in the exit tray (magicolor 5450 only) • The Paper Full Sensor (PC20) detects the load capacity of output media in the Exit Tray. • When the Paper Holding Plate is low, the edge of the Paper Holding Plate shades the Paper Full Sensor (PC20.) • When printing starts, the output media pushes up the Paper Holding Plate and the edge of the Plate activates the Paper Full Sensor (PC20.
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5430DL_5440DL_5450_TO_PDF.book 104 ページ２００５年４月１２日 Fusing Section 火曜日午後４時４９分 Main Unit Theory of Operation G. Print start wait control • To ensure good fusing performance for the first print, the print start timing is retarded. • The control also prevents the media from sticking during printing on OHP film in the color mode. • The print start timing is retarded using the value of either one of the two wait periods, whichever is longer, calculated under the following two conditions. 1.
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5430DL_5440DL_5450_TO_PDF.book 105 ページ２００５年４月１２日火曜日 Main Unit Theory of Operation 16.3.4 午後４時４９分 Fusing Section Fusing temperature control management • The appropriate type of temperature control is provided according to the machine status. Reset Heater OFF Warm-up control II Composition/Operation Post-warm-up control Wait control Print control Post-print cycle control 4138to2138e0 A. Conditions enabling shift to warm-up control • The Power Switch is turned ON.
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5430DL_5440DL_5450_TO_PDF.book 106 ページ２００５年４月１２日 Fusing Section 16.3.5 火曜日午後４時４９分 Main Unit Theory of Operation Warm-up control • Control is provided until the Heating Roller reaches the predetermined level. • The Power Save mode is not accepted during a warm-up cycle. A. Control start timing • The Power Switch is turned ON. • A malfunction or media misfeed is reset. • The machine leaves the Power Save mode. • A door is closed. II Composition/Operation B.
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２００５年４月１２日火曜日午後４時４９分 Main Unit Theory of Operation Fusing Section E. Ordinary start control 1. The “single reference temperature adjustment” is started with the target temperature of the Heating Roller Heater Lamp set at 170°C + correction value. At the same time, the “single reference temperature adjustment” is started with the target temperature of the Fusing Pressure Roller Heater Lamp set at 150°C. 2.
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5430DL_5440DL_5450_TO_PDF.book 108 ページ２００５年４月１２日 Fusing Section 16.3.6 火曜日午後４時４９分 Main Unit Theory of Operation Post-warm-up control • After the warm-up cycle has been completed, the Fusing Pressure Roller and Fusing Belt are turned to achieve a uniform temperature. • If the Heating Roller and the Fusing Pressure Roller have reached their respective required temperatures, the machine considers that the Fusing Unit rollers and belt have reached the specified temperatures.
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5430DL_5440DL_5450_TO_PDF.book 109 ページ２００５年４月１２日 Main Unit Theory of Operation 16.3.8 火曜日午後４時４９分 Fusing Section Print control • To ensure a good fixing level and light transmission performance of the OHP film, the fusing speed, Fusing Pressure Roller temperature, and Fusing Belt temperature are controlled. A. Control start timing • A print request is received. C. Control operation timing 1. The Fusing Pressure Roller and Fusing Belt are turned at the specified speed. 2.
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5430DL_5440DL_5450_TO_PDF.book 110 ページ２００５年４月１２日 Fusing Section 16.3.9 火曜日午後４時４９分 Main Unit Theory of Operation Post-print control • To prevent the fusing temperature from rising after the print cycle has been run, a stepwise control is provided using an intermediate temperature between the print temperature and the wait temperature. A. Control start timing • There is no new print request received when the trailing edge of the last sheet of media has moved past the Exit Roller.
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5430DL_5440DL_5450_TO_PDF.book 111 ページ２００５年４月１２日火曜日午後４時４９分 Main Unit Theory of Operation 16.3.11 Fusing Section Heater control A. Single reference temperature adjustment • The heater is turned ON or OFF using a target temperature value. B. Hysteresis temperature adjustment • The heater is turned ON or OFF with a certain allowance given for the threshold value of turning ON or OFF the heater. C.
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5430DL_5440DL_5450_TO_PDF.book 112 ページ２００５年４月１２日 Fusing Section 火曜日午後４時４９分 Main Unit Theory of Operation 16.4 Malfunction detection 16.4.1 Fusing Unit malfunctions • The following table lists the seven types of malfunctions as they relate to the Fusing Unit.
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5430DL_5440DL_5450_TO_PDF.book 113 ページ２００５年４月１２日火曜日午後４時４９分 Main Unit Theory of Operation 16.4.3 Fusing Section Warm-up failure detection control • The temperatures of the Heating Roller and Fusing Pressure Roller are monitored using the Heating Roller Thermistor (TH1) and Fusing Pressure Roller Thermistor (TH2) during a warm-up cycle. If an abnormal rise in temperature is detected, “warm-up failure 0500/ 0501” is displayed. B.
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5430DL_5440DL_5450_TO_PDF.book 114 ページ２００５年４月１２日 Fusing Section 16.4.5 火曜日午後４時４９分 Main Unit Theory of Operation Abnormally high temperature detection control • The temperatures of the Heating Roller and Fusing Pressure Roller are monitored using the Heating Roller Thermistor (TH1) and Fusing Pressure Roller Thermistor (TH2) while the machine remains active. If an abnormally high temperature is detected, “abnormally high temperature 0520/0521” is displayed. A.
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5430DL_5440DL_5450_TO_PDF.book 115 ページ２００５年４月１２日火曜日午後４時４９分 Main Unit Theory of Operation 16.4.7 Fusing Section Open-circuited Fusing Pressure Roller Thermistor (incorrect installation) detection control A. Detection start timing • A detection sequence is started when the following three conditions are met: 1. At the start of the warm-up control 2. The fusing rollers are turning. 3.
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5430DL_5440DL_5450_TO_PDF.book 116 ページ２００５年４月１２日 Fusing Section 16.4.9 火曜日午後４時４９分 Main Unit Theory of Operation Protection against abnormally high temperature • The machine provides protection at three different stages to prevent abnormally high temperature of the Fusing Unit. 1. Soft protection 2. Hard protection 3. Thermostat protection II Composition/Operation A.
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5430DL_5440DL_5450_TO_PDF.book 117 ページ２００５年４月１２日 Main Unit Theory of Operation 火曜日午後４時４９分 Fusing Section C. 3rd stage: Thermostat protection • If neither the soft protection nor hard protection can detect an abnormally high temperature due to a defective thermistor, the Heating Roller Thermostat (TS1) and Fusing Pressure Roller Thermostat (TS2) operate at the specified temperature.
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5430DL_5440DL_5450_TO_PDF.book 118 ページ２００５年４月１２日 Image Stabilization Control 火曜日午後４時４９分 Main Unit Theory of Operation 17. Image Stabilization Control • To ensure that a stabilized output image is produced at all times, a comprehensive control is provided for the developing bias voltage, laser light intensity, registration correction, gamma correction, and other parameters. 17.
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5430DL_5440DL_5450_TO_PDF.book 119 ページ２００５年４月１２日 Main Unit Theory of Operation 17.1.2 火曜日午後４時４９分 Image Stabilization Control Simplified correction control • If the simplified correction control is not effective in making a good correction, the complete correction control is executed. Control name 1 2 Purpose ☞ 2-65 To check the low gain output value and offset voltage value of the AIDC Sensor when the shutter is closed.
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5430DL_5440DL_5450_TO_PDF.book 120 ページ２００５年４月１２日 Image Stabilization Control 17.1.3 火曜日午後４時４９分 Main Unit Theory of Operation Image stabilization control execution request • A request for execution of the complete correction control or simplified correction control is made at the following timing.
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5430DL_5440DL_5450_TO_PDF.book 122 ページ２００５年４月１２日 Image Stabilization Control 火曜日午後４時４９分 Main Unit Theory of Operation 17.2 Operation flow of image stabilization control upon replacement of unit When a new Transfer Unit or a new TC is installed (complete correction control) Start II Composition/Operation Transfer Belt cleaning control, 2nd transfer cleaning control Transfer ATVC control AIDC offset processing AIDC intensity control Vpp control Max.
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5430DL_5440DL_5450_TO_PDF.book 123 ページ２００５年４月１２日火曜日午後４時４９分 Main Unit Theory of Operation Miscellaneous 18. Miscellaneous 18.1 Fan control 18.1.1 Composition [1] [1], [2] [3] [3] 4138to2111c0 4138to2110c0 Key Name • Discharges heat generated from the interior parts (including the Low Voltage Unit, Fusing Unit, Toner Cartridges/K, and motor drives) from the machine to prevent the interior temperature from rising inordinately.
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5430DL_5440DL_5450_TO_PDF.book 124 ページ２００５年４月１２日 Miscellaneous 18.1.2 火曜日午後４時４９分 Main Unit Theory of Operation Control II Composition/Operation A. LV Cooling Fan Motor (M10) control • For the period of time that begins when the warm-up cycle is started and ends when a predetermined period of time elapses after the warm-up cycle has been completed.
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5430DL_5440DL_5450_TO_PDF.book 1 ページ２００５年４月１２日 SERVICE MANUAL 火曜日午後４時４９分 THEORY OF OPERATION Lower Feeder Unit 2005.04 Ver. 2.
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5430DL_5440DL_5450_TO_PDF.book i ページ２００５年４月１２日火曜日午後４時４９分 Lower Feeder Unit Theory of Operation CONTENTS I Outline Product specifications .......................................................................................... 1-1 1.1 Type ................................................................................................................... 1-1 1.2 Paper type ......................................................................................................... 1-1 1.
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5430DL_5440DL_5450_TO_PDF.book 1 ページ２００５年４月１２日火曜日午後４時４９分 Lower Feeder Unit Theory of Operation Product specifications I Outline Product specifications 1.1 Type Name Add-on 500-sheet paper feed cassette Type Front-loading type Installation Desk type Paper Feeding System Paper separation by a small-diameter roller with torque limiter Document Alignment 1.
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5430DL_5440DL_5450_TO_PDF.book 1 ページ２００５年４月１２日火曜日 Lower Feeder Unit Theory of Operation 午後４時４９分 Overall composition II Composition/Operation Overall composition [1] [2] [4] II Composition/Operation 1.
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5430DL_5440DL_5450_TO_PDF.book 2 ページ２００５年４月１２日 Overall composition II Composition/Operation Key 火曜日午後４時４９分 Lower Feeder Unit Theory of Operation Name Function/system [1] Paper Lift Plate • Surface on which the paper stack is placed • Maximum paper capacity Plain paper: 500 sheets [2] Lower Feeder Unit Right Door • Open to clear a sheet of misfed paper from the Lower Feeder Unit. [3] Auxiliary Guide • Guides the paper conveyed toward the machine. • Covers the Vertical Conveyance Roller.
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5430DL_5440DL_5450_TO_PDF.book 3 ページ２００５年４月１２日火曜日午後４時４９分 Lower Feeder Unit Theory of Operation 2. Drive Drive [1] [3] [4] [2] 4537to2502c0 [1] Vertical Conveyance Roller [4] Lower Feeder Motor (M1 PF) [2] Lower Feeder Separation Roller [5] Lower Feeder Paper Feed Clutch (CL1 PF) [3] Lower Feeder Paper Feed Roller 3. Operations 3.1 Paper feed control 3.1.
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5430DL_5440DL_5450_TO_PDF.book 4 ページ２００５年４月１２日 Operations II Composition/Operation 3.1.2 火曜日午後４時４９分 Lower Feeder Unit Theory of Operation Feed Roller/Vertical Conveyance Roller control • The Feed Roller and Vertical Conveyance Roller are rotated, which feeds paper from the Lower Feeder Unit and conveys it further into the inside of the machine. 1. The Lower Feeder Motor (M1 PF) is energized to turn the Vertical Conveyance Roller. 2.
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5430DL_5440DL_5450_TO_PDF.book 5 ページ２００５年４月１２日火曜日午後４時４９分 Lower Feeder Unit Theory of Operation 3.1.3 Operations Paper separation mechanism • A Separation Roller provided with a torque limiter is used to prevent double feeding of paper. Feed Roller 4138to2115c0 3.1.4 Paper detection mechanism • The Lower Feeder Paper Feed Sensor (PC3 PF) detects the paper fed in by the Feed Roller. • When two Lower Feeder Units are installed, the sensor detects the paper fed off from Tray 3.
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5430DL_5440DL_5450_TO_PDF.book 6 ページ２００５年４月１２日 Operations 3.1.5 火曜日午後４時４９分 Lower Feeder Unit Theory of Operation Paper supply level detection control • There is a window in the front cover of the cassette for indicating the paper supply level. • When the Paper Lift Plate goes up, a red lever appears in the window. The lower the level of the paper stack in the tray, the more red that is visible.
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5430DL_5440DL_5450_TO_PDF.book 7 ページ２００５年４月１２日火曜日午後４時４９分 Lower Feeder Unit Theory of Operation 3.1.7 Operations Edge Guide Plate • The Edge Guide Plate can be slid to the exact size in the width direction of the paper to be loaded (A4, B5, 8/12). 4138to2120c0 3.1.8 Trailing Edge Guide Plate • The Trailing Edge Guide Plate can be slid to the exact size in the length direction of the paper to be loaded (14 inch, 13 inch, 127/10 inch, A4, 11, 101/2 inch, B5).
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5430DL_5440DL_5450_TO_PDF.book 8 ページ２００５年４月１２日 Operations 3.1.9 火曜日午後４時４９分 Lower Feeder Unit Theory of Operation Paper size detection control • The Lower Feeder Paper Size Switch (S1 PF) detects the length size (FD) of the paper. 1. The Size Detection Board turns as the Trailing Edge Guide Plate is moved. 2. When the tray is slid into the machine, the Size Detection Board pushes the actuator of the Lower Feeder Paper Size Switch (S1 PF) installed to the machine frame, thus turning ON the switch.
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5430DL_5440DL_5450_TO_PDF.book 9 ページ２００５年４月１２日火曜日午後４時４９分 Lower Feeder Unit Theory of Operation 3.1.10 Operations Paper reference position adjustment mechanism Paper Lift Plate Edge Guide Plate fixing screws 4138to2125c0 Reference position Adjusting Plate Adjustment scale 4138to2123c0 Reference Position Adjusting Plate fixing screws 3.1.
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5430DL_5440DL_5450_TO_PDF.book 1 ページ２００５年４月１２日 SERVICE MANUAL 火曜日午後４時４９分 THEORY OF OPERATION Duplex Option 2005.04 Ver. 2.
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5430DL_5440DL_5450_TO_PDF.book i ページ２００５年４月１２日火曜日午後４時４９分 Duplex Option Theory of Operation CONTENTS I Outline Product specifications .......................................................................................... 1-1 1.1 Type ................................................................................................................... 1-1 1.2 Paper type ......................................................................................................... 1-1 1.
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5430DL_5440DL_5450_TO_PDF.book 1 ページ２００５年４月１２日火曜日午後４時４９分 Duplex Option Theory of Operation Product specifications I Outline Product specifications 1.1 Type Name Duplex Unit Type Reversing and Circulating Duplex Unit Installation Mounted on the right side door of the main unit Document Alignment Center 1.2 Paper type Paper Type Plain paper Paper Size A4, B5T, Letter, Legal 1.
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5430DL_5440DL_5450_TO_PDF.book 1 ページ２００５年４月１２日火曜日午後４時４９分 Duplex Option Theory of Operation Overall composition II Composition/Operation 1.
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5430DL_5440DL_5450_TO_PDF.book 2 ページ２００５年４月１２日 Center Cross Section 2.
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5430DL_5440DL_5450_TO_PDF.book 3 ページ２００５年４月１２日 Duplex Option Theory of Operation 午後４時４９分 Drive System Drive System Reversing drive mechanism II Composition/Operation 3.
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5430DL_5440DL_5450_TO_PDF.book 4 ページ２００５年４月１２日 Mechanical Operations 午後４時４９分 Duplex Option Theory of Operation 4. Mechanical Operations 4.1 Reversing mechanism 4.1.1 火曜日 Reversing operation • The 1-sided printed page is subjected to a reversing operation performed by the Exit Roller in the machine and conveyed into the Duplex Option. II Composition/Operation Conveyed into the Duplex Option Exit Roller 4.1.
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5430DL_5440DL_5450_TO_PDF.book 5 ページ２００５年４月１２日火曜日 Duplex Option Theory of Operation 4.2 4.2.1 午後４時４９分 Mechanical Operations Conveyance and duplex paper feed mechanism Conveyance and duplex paper feed operation • The Duplex Conveyance Motor provides the drive for the Duplex Option. Duplex Option Conveyance Roller 1 Duplex Conveyance Motor (M1 DU) II Composition/Operation Duplex Option Conveyance Roll Duplex Option Conveyance Roll Duplex Option Conveyance Roller 2 4.2.
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5430DL_5440DL_5450_TO_PDF.book 6 ページ２００５年４月１２日 Mechanical Operations 4.3 火曜日午後４時４９分 Duplex Option Theory of Operation 2-sided printing method • The following two types of 2-sided printing methods are available. 2-sided printing method 2-sided printing with a single sheet of paper resident in the system 2-sided printing with two sheets of paper resident in the system (for Letter and smaller sizes) II Composition/Operation 4.3.
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5430DL_5440DL_5450_TO_PDF.book 7 ページ２００５年４月１２日火曜日午後４時４９分 Duplex Option Theory of Operation Mechanical Operations Operation 4 • The image of the first page of the print job is printed on the 1-sided printed page fed out of the Duplex Option. Operation 5 • As the 2-sided printed page is being fed out of the machine, the image of the fourth page of the print job is printed on the second sheet of paper. 2 2 1 4 • Steps 2 through 5 are repeated until all pages of the job are printed.
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5430DL_5440DL_5450_TO_PDF.book 8 ページ２００５年４月１２日 Mechanical Operations 4.3.2 火曜日午後４時４９分 Duplex Option Theory of Operation Process of 2-sided printing with two sheets of paper resident in the system Operation 1 • The first sheet of paper is fed in and the image of the second page of the print job is printed.
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5430DL_5440DL_5450_TO_PDF.book 9 ページ２００５年４月１２日火曜日午後４時４９分 Duplex Option Theory of Operation Mechanical Operations Operation 4 • Immediately before the second sheet of paper exits the feed roller, the rotating direction of the feed roller changes and the second sheet of paper is transported into the Duplex Option. • The first sheet of paper is fed alongside again.
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SERVICE MANUAL magicolor® 5430 DL magicolor® 5440 DL THEORY OF OPERATION ® magicolor 5450 Use of this manual should be strictly supervised to avoid disclosure of confidential information. Printed in Japan 4138-7990-31 2005.04 Ver.3.0 © 2005 KONICA MINOLTA BUSINESS TECHNOLOGIES, INC. THEORY OF OPERATION magicolor 5430 DL magicolor 5440 DL magicolor 5450 ® ® ® 2005.04 Ver. 3.